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dirent.h と _USE_32BIT_TIME_T の組み合わせがバグっているかもしれない話 #mingw32
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#include <stdio.h> | |
#include <stdlib.h> | |
#include <dirent.h> | |
int main(int argc, char *argv[]) | |
{ | |
struct dirent *entry; | |
DIR *dir; | |
char *path; | |
path = argv[1] ? argv[1] : "."; | |
dir = opendir(path); | |
if (dir == NULL) { | |
perror("opendir"); | |
exit(EXIT_FAILURE); | |
} | |
while ((entry = readdir(dir)) != NULL) { | |
printf("name : %s\n", entry->d_name); | |
} | |
closedir(dir); | |
return 0; | |
} |
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$ gcc -v | |
Using built-in specs. | |
COLLECT_GCC=C:\MinGW\bin\gcc.exe | |
COLLECT_LTO_WRAPPER=c:/mingw/bin/../libexec/gcc/mingw32/4.8.1/lto-wrapper.exe | |
Target: mingw32 | |
Configured with: ../gcc-4.8.1/configure --prefix=/mingw --host=mingw32 --build=mingw32 --without-pic --enable-shared --enable-static --with-gnu-ld --enable-lto --enable-libssp --disable-multilib --enable-languages=c,c++,fortran,objc,obj-c++,ada --disable-sjlj-exceptions --with-dwarf2 --disable-win32-registry --enable-libstdcxx-debug --enable-version-specific-runtime-libs --with-gmp=/usr/src/pkg/gmp-5.1.2-1-mingw32-src/bld --with-mpc=/usr/src/pkg/mpc-1.0.1-1-mingw32-src/bld --with-mpfr= --with-system-zlib --with-gnu-as --enable-decimal-float=yes --enable-libgomp --enable-threads --with-libiconv-prefix=/mingw32 --with-libintl-prefix=/mingw --disable-bootstrap LDFLAGS=-s CFLAGS=-D_USE_32BIT_TIME_T | |
Thread model: win32 | |
gcc version 4.8.1 (GCC) | |
$ gcc dirent.c && ./a.exe / | |
name : . | |
name : .. | |
name : bin | |
name : etc | |
name : include | |
name : lib | |
name : local | |
name : m.ico | |
name : msys.bat | |
name : msys.ico | |
name : postinstall | |
name : sbin | |
name : share | |
name : var | |
# まっしろ | |
$ gcc -D_USE_32BIT_TIME_T dirent.c && ./a.exe / | |
name : | |
name : | |
name : | |
name : | |
name : | |
name : | |
name : | |
name : | |
name : | |
name : | |
name : | |
name : | |
name : | |
name : | |
# TDM-GCC (mingw-w64) では上記の問題は発生しない | |
$ /c/MinGW64/bin/gcc -m32 -D_USE_32BIT_TIME_T dirent.c && ./a.exe / | |
name : . | |
name : .. | |
name : bin | |
name : etc | |
name : include | |
name : lib | |
name : local | |
name : m.ico | |
name : msys.bat | |
name : msys.ico | |
name : postinstall | |
name : sbin | |
name : share | |
name : var |
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参考 : http://sourceforge.net/p/mingw/mailman/message/31513950/